Absence of quantum features in sideband asymmetry

J. D. P. Machado, Yaroslav M. Blanter

Published Jan 9, 2020• 0 citations

Abstract

Sideband asymmetry has been explained by particle creation and annihilation processes, which bestow an amplitude proportional to 'n+1' and 'n' excitations to each of the respective sidebands. We discuss the issues with this interpretation and why a proper quantum description of the measurement should not display such imbalance. Considering the case of linearly coupled resonators, we find that the asymmetry arises from the backaction caused by the probe and the cooling lasers.

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